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- First, identify the coordinates of the pre - image and image points:
- Let's assume a point \(W(x_1,y_1)\) and its image \(W'(x_2,y_2)\). From the graph, if we assume \(W(- 4,-9)\) and \(W'(0,-1)\), and another point \(X(-4,-4)\) and its image \(X'(0,4)\).
- For the \(x\) - coordinates:
- The change in the \(x\) - coordinate from \(W\) to \(W'\) is \(\Delta x=x_2 - x_1=0-(-4)=4\).
- The change in the \(x\) - coordinate from \(X\) to \(X'\) is also \(0 - (-4)=4\).
- For the \(y\) - coordinates:
- The change in the \(y\) - coordinate from \(W\) to \(W'\) is \(\Delta y=y_2 - y_1=-1-(-9)=8\).
- The change in the \(y\) - coordinate from \(X\) to \(X'\) is \(4-(-4)=8\).
- Determine the transformation rule \((x,y)\to(x + a,y + b)\):
- Since the change in the \(x\) - coordinate (\(a\)) is \(4\) and the change in the \(y\) - coordinate (\(b\)) is \(8\), the transformation rule is \((x,y)\to(x + 4,y + 8)\).
Step1: Find change in x - coordinates
For points \(W\) and \(W'\) (or \(X\) and \(X'\)), calculate \(x_{image}-x_{pre - image}\). For \(W(-4,-9)\) and \(W'(0,-1)\), \(0-(-4)=4\).
Step2: Find change in y - coordinates
For points \(W\) and \(W'\) (or \(X\) and \(X'\)), calculate \(y_{image}-y_{pre - image}\). For \(W(-4,-9)\) and \(W'(0,-1)\), \(-1-(-9)=8\).
Step3: Write transformation rule
The rule \((x,y)\to(x + 4,y + 8)\) is based on the changes found in \(x\) and \(y\) coordinates.
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\((x,y)\to(x + 4,y + 8)\)